root/dev/usb/if_aue.c

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DEFINITIONS

This source file includes following definitions.
  1. aue_csr_read_1
  2. aue_csr_read_2
  3. aue_csr_write_1
  4. aue_csr_write_2
  5. aue_eeprom_getword
  6. aue_read_mac
  7. aue_lock_mii
  8. aue_unlock_mii
  9. aue_miibus_readreg
  10. aue_miibus_writereg
  11. aue_miibus_statchg
  12. aue_crc
  13. aue_setmulti
  14. aue_reset_pegasus_II
  15. aue_reset
  16. aue_match
  17. aue_attach
  18. aue_detach
  19. aue_activate
  20. aue_newbuf
  21. aue_rx_list_init
  22. aue_tx_list_init
  23. aue_intr
  24. aue_rxeof
  25. aue_txeof
  26. aue_tick
  27. aue_tick_task
  28. aue_send
  29. aue_start
  30. aue_init
  31. aue_openpipes
  32. aue_ifmedia_upd
  33. aue_ifmedia_sts
  34. aue_ioctl
  35. aue_watchdog
  36. aue_shutdown
  37. aue_stop

    1 /*      $OpenBSD: if_aue.c,v 1.65 2007/06/14 10:11:15 mbalmer Exp $ */
    2 /*      $NetBSD: if_aue.c,v 1.82 2003/03/05 17:37:36 shiba Exp $        */
    3 /*
    4  * Copyright (c) 1997, 1998, 1999, 2000
    5  *      Bill Paul <wpaul@ee.columbia.edu>.  All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. All advertising materials mentioning features or use of this software
   16  *    must display the following acknowledgement:
   17  *      This product includes software developed by Bill Paul.
   18  * 4. Neither the name of the author nor the names of any co-contributors
   19  *    may be used to endorse or promote products derived from this software
   20  *    without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
   23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
   26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   32  * THE POSSIBILITY OF SUCH DAMAGE.
   33  *
   34  * $FreeBSD: src/sys/dev/usb/if_aue.c,v 1.11 2000/01/14 01:36:14 wpaul Exp $
   35  */
   36 
   37 /*
   38  * ADMtek AN986 Pegasus and AN8511 Pegasus II USB to ethernet driver.
   39  * Datasheet is available from http://www.admtek.com.tw.
   40  *
   41  * Written by Bill Paul <wpaul@ee.columbia.edu>
   42  * Electrical Engineering Department
   43  * Columbia University, New York City
   44  */
   45 
   46 /*
   47  * The Pegasus chip uses four USB "endpoints" to provide 10/100 ethernet
   48  * support: the control endpoint for reading/writing registers, burst
   49  * read endpoint for packet reception, burst write for packet transmission
   50  * and one for "interrupts." The chip uses the same RX filter scheme
   51  * as the other ADMtek ethernet parts: one perfect filter entry for the
   52  * the station address and a 64-bit multicast hash table. The chip supports
   53  * both MII and HomePNA attachments.
   54  *
   55  * Since the maximum data transfer speed of USB is supposed to be 12Mbps,
   56  * you're never really going to get 100Mbps speeds from this device. I
   57  * think the idea is to allow the device to connect to 10 or 100Mbps
   58  * networks, not necessarily to provide 100Mbps performance. Also, since
   59  * the controller uses an external PHY chip, it's possible that board
   60  * designers might simply choose a 10Mbps PHY.
   61  *
   62  * Registers are accessed using usbd_do_request(). Packet transfers are
   63  * done using usbd_transfer() and friends.
   64  */
   65 
   66 /*
   67  * Ported to NetBSD and somewhat rewritten by Lennart Augustsson.
   68  */
   69 
   70 /*
   71  * TODO:
   72  * better error messages from rxstat
   73  * split out if_auevar.h
   74  * add thread to avoid register reads from interrupt context
   75  * more error checks
   76  * investigate short rx problem
   77  * proper cleanup on errors
   78  */
   79 
   80 #include "bpfilter.h"
   81 
   82 #include <sys/param.h>
   83 #include <sys/systm.h>
   84 #include <sys/sockio.h>
   85 #include <sys/rwlock.h>
   86 #include <sys/mbuf.h>
   87 #include <sys/malloc.h>
   88 #include <sys/kernel.h>
   89 #include <sys/proc.h>
   90 #include <sys/socket.h>
   91 
   92 #include <sys/device.h>
   93 
   94 #include <net/if.h>
   95 #include <net/if_dl.h>
   96 #include <net/if_media.h>
   97 
   98 #if NBPFILTER > 0
   99 #include <net/bpf.h>
  100 #endif
  101 
  102 #ifdef INET
  103 #include <netinet/in.h>
  104 #include <netinet/in_systm.h>
  105 #include <netinet/in_var.h>
  106 #include <netinet/ip.h>
  107 #include <netinet/if_ether.h>
  108 #endif
  109 
  110 #include <dev/mii/mii.h>
  111 #include <dev/mii/miivar.h>
  112 
  113 #include <dev/usb/usb.h>
  114 #include <dev/usb/usbdi.h>
  115 #include <dev/usb/usbdi_util.h>
  116 #include <dev/usb/usbdevs.h>
  117 
  118 #include <dev/usb/if_auereg.h>
  119 
  120 #ifdef AUE_DEBUG
  121 #define DPRINTF(x)      do { if (auedebug) printf x; } while (0)
  122 #define DPRINTFN(n,x)   do { if (auedebug >= (n)) printf x; } while (0)
  123 int     auedebug = 0;
  124 #else
  125 #define DPRINTF(x)
  126 #define DPRINTFN(n,x)
  127 #endif
  128 
  129 /*
  130  * Various supported device vendors/products.
  131  */
  132 struct aue_type {
  133         struct usb_devno        aue_dev;
  134         u_int16_t               aue_flags;
  135 #define LSYS    0x0001          /* use Linksys reset */
  136 #define PNA     0x0002          /* has Home PNA */
  137 #define PII     0x0004          /* Pegasus II chip */
  138 };
  139 
  140 const struct aue_type aue_devs[] = {
  141  {{ USB_VENDOR_3COM,            USB_PRODUCT_3COM_3C460B},         PII },
  142  {{ USB_VENDOR_ABOCOM,          USB_PRODUCT_ABOCOM_XX1},          PNA|PII },
  143  {{ USB_VENDOR_ABOCOM,          USB_PRODUCT_ABOCOM_XX2},          PII },
  144  {{ USB_VENDOR_ABOCOM,          USB_PRODUCT_ABOCOM_UFE1000},      LSYS },
  145  {{ USB_VENDOR_ABOCOM,          USB_PRODUCT_ABOCOM_XX4},          PNA },
  146  {{ USB_VENDOR_ABOCOM,          USB_PRODUCT_ABOCOM_XX5},          PNA },
  147  {{ USB_VENDOR_ABOCOM,          USB_PRODUCT_ABOCOM_XX6},          PII },
  148  {{ USB_VENDOR_ABOCOM,          USB_PRODUCT_ABOCOM_XX7},          PII },
  149  {{ USB_VENDOR_ABOCOM,          USB_PRODUCT_ABOCOM_XX8},          PII },
  150  {{ USB_VENDOR_ABOCOM,          USB_PRODUCT_ABOCOM_XX9},          PNA },
  151  {{ USB_VENDOR_ABOCOM,          USB_PRODUCT_ABOCOM_XX10},         0 },
  152  {{ USB_VENDOR_ABOCOM,          USB_PRODUCT_ABOCOM_DSB650TX_PNA}, 0 },
  153  {{ USB_VENDOR_ACCTON,          USB_PRODUCT_ACCTON_USB320_EC},    0 },
  154  {{ USB_VENDOR_ACCTON,          USB_PRODUCT_ACCTON_SS1001},       PII },
  155  {{ USB_VENDOR_ADMTEK,          USB_PRODUCT_ADMTEK_PEGASUS},      PNA },
  156  {{ USB_VENDOR_ADMTEK,          USB_PRODUCT_ADMTEK_PEGASUSII},    PII },
  157  {{ USB_VENDOR_ADMTEK,          USB_PRODUCT_ADMTEK_PEGASUSII_2},  PII },
  158  {{ USB_VENDOR_ADMTEK,          USB_PRODUCT_ADMTEK_PEGASUSII_3},  PII },
  159  {{ USB_VENDOR_ADMTEK,          USB_PRODUCT_ADMTEK_PEGASUSII_4},  PII },
  160  {{ USB_VENDOR_AEI,             USB_PRODUCT_AEI_FASTETHERNET},    PII },
  161  {{ USB_VENDOR_ALLIEDTELESYN,   USB_PRODUCT_ALLIEDTELESYN_ATUSB100}, PII },
  162  {{ USB_VENDOR_ATEN,            USB_PRODUCT_ATEN_UC110T},         PII },
  163  {{ USB_VENDOR_BELKIN,          USB_PRODUCT_BELKIN_F5D5050},      PII },
  164  {{ USB_VENDOR_BILLIONTON,      USB_PRODUCT_BILLIONTON_USB100},   0 },
  165  {{ USB_VENDOR_BILLIONTON,      USB_PRODUCT_BILLIONTON_USBLP100}, PNA },
  166  {{ USB_VENDOR_BILLIONTON,      USB_PRODUCT_BILLIONTON_USBEL100}, 0 },
  167  {{ USB_VENDOR_BILLIONTON,      USB_PRODUCT_BILLIONTON_USBE100},  PII },
  168  {{ USB_VENDOR_COREGA,          USB_PRODUCT_COREGA_FETHER_USB_TX}, 0 },
  169  {{ USB_VENDOR_COREGA,          USB_PRODUCT_COREGA_FETHER_USB_TXS},PII },
  170  {{ USB_VENDOR_DLINK,           USB_PRODUCT_DLINK_DSB650TX4},     LSYS|PII },
  171  {{ USB_VENDOR_DLINK,           USB_PRODUCT_DLINK_DSB650TX1},     LSYS },
  172  {{ USB_VENDOR_DLINK,           USB_PRODUCT_DLINK_DSB650TX},      LSYS },
  173  {{ USB_VENDOR_DLINK,           USB_PRODUCT_DLINK_DSB650TX_PNA},  PNA },
  174  {{ USB_VENDOR_DLINK,           USB_PRODUCT_DLINK_DSB650TX3},     LSYS|PII },
  175  {{ USB_VENDOR_DLINK,           USB_PRODUCT_DLINK_DSB650TX2},     LSYS|PII },
  176  {{ USB_VENDOR_DLINK,           USB_PRODUCT_DLINK_DSB650},        0 },
  177  {{ USB_VENDOR_ELCON,           USB_PRODUCT_ELCON_PLAN},          PNA|PII },
  178  {{ USB_VENDOR_ELECOM,          USB_PRODUCT_ELECOM_LDUSBTX0},     0 },
  179  {{ USB_VENDOR_ELECOM,          USB_PRODUCT_ELECOM_LDUSBTX1},     LSYS },
  180  {{ USB_VENDOR_ELECOM,          USB_PRODUCT_ELECOM_LDUSBTX2},     0 },
  181  {{ USB_VENDOR_ELECOM,          USB_PRODUCT_ELECOM_LDUSBTX3},     LSYS },
  182  {{ USB_VENDOR_ELECOM,          USB_PRODUCT_ELECOM_LDUSBLTX},     PII },
  183  {{ USB_VENDOR_ELECOM,          USB_PRODUCT_ELECOM_LDUSB20},      PII },
  184  {{ USB_VENDOR_ELSA,            USB_PRODUCT_ELSA_USB2ETHERNET},   0 },
  185  {{ USB_VENDOR_GIGABYTE,        USB_PRODUCT_GIGABYTE_GNBR402W},   0 },
  186  {{ USB_VENDOR_HAWKING,         USB_PRODUCT_HAWKING_UF100},       PII },
  187  {{ USB_VENDOR_HP,              USB_PRODUCT_HP_HN210E},           PII },
  188  {{ USB_VENDOR_IODATA,          USB_PRODUCT_IODATA_USBETTX},      0 },
  189  {{ USB_VENDOR_IODATA,          USB_PRODUCT_IODATA_USBETTXS},     PII },
  190  {{ USB_VENDOR_KINGSTON,        USB_PRODUCT_KINGSTON_KNU101TX},   0 },
  191  {{ USB_VENDOR_LINKSYS,         USB_PRODUCT_LINKSYS_USB10TX1},    LSYS|PII },
  192  {{ USB_VENDOR_LINKSYS,         USB_PRODUCT_LINKSYS_USB10T},      LSYS },
  193  {{ USB_VENDOR_LINKSYS,         USB_PRODUCT_LINKSYS_USB100TX},    LSYS },
  194  {{ USB_VENDOR_LINKSYS,         USB_PRODUCT_LINKSYS_USB100H1},    LSYS|PNA },
  195  {{ USB_VENDOR_LINKSYS,         USB_PRODUCT_LINKSYS_USB10TA},     LSYS },
  196  {{ USB_VENDOR_LINKSYS,         USB_PRODUCT_LINKSYS_USB10TX2},    LSYS|PII },
  197  {{ USB_VENDOR_MICROSOFT,       USB_PRODUCT_MICROSOFT_MN110},     PII },
  198  {{ USB_VENDOR_MELCO,           USB_PRODUCT_MELCO_LUATX1},        0 },
  199  {{ USB_VENDOR_MELCO,           USB_PRODUCT_MELCO_LUATX5},        0 },
  200  {{ USB_VENDOR_MELCO,           USB_PRODUCT_MELCO_LUA2TX5},       PII },
  201  {{ USB_VENDOR_MOBILITY,        USB_PRODUCT_MOBILITY_EASIDOCK},   0 },
  202  {{ USB_VENDOR_NETGEAR,         USB_PRODUCT_NETGEAR_FA101},       PII },
  203  {{ USB_VENDOR_SIEMENS,         USB_PRODUCT_SIEMENS_SPEEDSTREAM}, PII },
  204  {{ USB_VENDOR_SIIG2,           USB_PRODUCT_SIIG2_USBTOETHER},    PII },
  205  {{ USB_VENDOR_SMARTBRIDGES,    USB_PRODUCT_SMARTBRIDGES_SMARTNIC},PII },
  206  {{ USB_VENDOR_SMC,             USB_PRODUCT_SMC_2202USB},         0 },
  207  {{ USB_VENDOR_SMC,             USB_PRODUCT_SMC_2206USB},         PII },
  208  {{ USB_VENDOR_SOHOWARE,        USB_PRODUCT_SOHOWARE_NUB100},     0 },
  209  {{ USB_VENDOR_SOHOWARE,        USB_PRODUCT_SOHOWARE_NUB110},     PII },
  210 };
  211 #define aue_lookup(v, p) ((struct aue_type *)usb_lookup(aue_devs, v, p))
  212 
  213 int aue_match(struct device *, void *, void *); 
  214 void aue_attach(struct device *, struct device *, void *); 
  215 int aue_detach(struct device *, int); 
  216 int aue_activate(struct device *, enum devact); 
  217 
  218 struct cfdriver aue_cd = { 
  219         NULL, "aue", DV_IFNET 
  220 }; 
  221 
  222 const struct cfattach aue_ca = { 
  223         sizeof(struct aue_softc), 
  224         aue_match, 
  225         aue_attach, 
  226         aue_detach, 
  227         aue_activate, 
  228 };
  229 
  230 void aue_reset_pegasus_II(struct aue_softc *sc);
  231 int aue_tx_list_init(struct aue_softc *);
  232 int aue_rx_list_init(struct aue_softc *);
  233 int aue_newbuf(struct aue_softc *, struct aue_chain *, struct mbuf *);
  234 int aue_send(struct aue_softc *, struct mbuf *, int);
  235 void aue_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
  236 void aue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
  237 void aue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
  238 void aue_tick(void *);
  239 void aue_tick_task(void *);
  240 void aue_start(struct ifnet *);
  241 int aue_ioctl(struct ifnet *, u_long, caddr_t);
  242 void aue_init(void *);
  243 void aue_shutdown(void *);
  244 void aue_stop(struct aue_softc *);
  245 void aue_watchdog(struct ifnet *);
  246 int aue_openpipes(struct aue_softc *);
  247 int aue_ifmedia_upd(struct ifnet *);
  248 void aue_ifmedia_sts(struct ifnet *, struct ifmediareq *);
  249 
  250 int aue_eeprom_getword(struct aue_softc *, int);
  251 void aue_read_mac(struct aue_softc *, u_char *);
  252 int aue_miibus_readreg(struct device *, int, int);
  253 void aue_miibus_writereg(struct device *, int, int, int);
  254 void aue_miibus_statchg(struct device *);
  255 
  256 void aue_lock_mii(struct aue_softc *);
  257 void aue_unlock_mii(struct aue_softc *);
  258 
  259 void aue_setmulti(struct aue_softc *);
  260 u_int32_t aue_crc(caddr_t);
  261 void aue_reset(struct aue_softc *);
  262 
  263 int aue_csr_read_1(struct aue_softc *, int);
  264 int aue_csr_write_1(struct aue_softc *, int, int);
  265 int aue_csr_read_2(struct aue_softc *, int);
  266 int aue_csr_write_2(struct aue_softc *, int, int);
  267 
  268 #define AUE_SETBIT(sc, reg, x)                          \
  269         aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) | (x))
  270 
  271 #define AUE_CLRBIT(sc, reg, x)                          \
  272         aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) & ~(x))
  273 
  274 int
  275 aue_csr_read_1(struct aue_softc *sc, int reg)
  276 {
  277         usb_device_request_t    req;
  278         usbd_status             err;
  279         uByte                   val = 0;
  280 
  281         if (sc->aue_dying)
  282                 return (0);
  283 
  284         req.bmRequestType = UT_READ_VENDOR_DEVICE;
  285         req.bRequest = AUE_UR_READREG;
  286         USETW(req.wValue, 0);
  287         USETW(req.wIndex, reg);
  288         USETW(req.wLength, 1);
  289 
  290         err = usbd_do_request(sc->aue_udev, &req, &val);
  291 
  292         if (err) {
  293                 DPRINTF(("%s: aue_csr_read_1: reg=0x%x err=%s\n",
  294                          sc->aue_dev.dv_xname, reg, usbd_errstr(err)));
  295                 return (0);
  296         }
  297 
  298         return (val);
  299 }
  300 
  301 int
  302 aue_csr_read_2(struct aue_softc *sc, int reg)
  303 {
  304         usb_device_request_t    req;
  305         usbd_status             err;
  306         uWord                   val;
  307 
  308         if (sc->aue_dying)
  309                 return (0);
  310 
  311         req.bmRequestType = UT_READ_VENDOR_DEVICE;
  312         req.bRequest = AUE_UR_READREG;
  313         USETW(req.wValue, 0);
  314         USETW(req.wIndex, reg);
  315         USETW(req.wLength, 2);
  316 
  317         err = usbd_do_request(sc->aue_udev, &req, &val);
  318 
  319         if (err) {
  320                 DPRINTF(("%s: aue_csr_read_2: reg=0x%x err=%s\n",
  321                          sc->aue_dev.dv_xname, reg, usbd_errstr(err)));
  322                 return (0);
  323         }
  324 
  325         return (UGETW(val));
  326 }
  327 
  328 int
  329 aue_csr_write_1(struct aue_softc *sc, int reg, int aval)
  330 {
  331         usb_device_request_t    req;
  332         usbd_status             err;
  333         uByte                   val;
  334 
  335         if (sc->aue_dying)
  336                 return (0);
  337 
  338         val = aval;
  339         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
  340         req.bRequest = AUE_UR_WRITEREG;
  341         USETW(req.wValue, val);
  342         USETW(req.wIndex, reg);
  343         USETW(req.wLength, 1);
  344 
  345         err = usbd_do_request(sc->aue_udev, &req, &val);
  346 
  347         if (err) {
  348                 DPRINTF(("%s: aue_csr_write_1: reg=0x%x err=%s\n",
  349                          sc->aue_dev.dv_xname, reg, usbd_errstr(err)));
  350                 return (-1);
  351         }
  352 
  353         return (0);
  354 }
  355 
  356 int
  357 aue_csr_write_2(struct aue_softc *sc, int reg, int aval)
  358 {
  359         usb_device_request_t    req;
  360         usbd_status             err;
  361         uWord                   val;
  362 
  363         if (sc->aue_dying)
  364                 return (0);
  365 
  366         USETW(val, aval);
  367         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
  368         req.bRequest = AUE_UR_WRITEREG;
  369         USETW(req.wValue, aval);
  370         USETW(req.wIndex, reg);
  371         USETW(req.wLength, 2);
  372 
  373         err = usbd_do_request(sc->aue_udev, &req, &val);
  374 
  375         if (err) {
  376                 DPRINTF(("%s: aue_csr_write_2: reg=0x%x err=%s\n",
  377                          sc->aue_dev.dv_xname, reg, usbd_errstr(err)));
  378                 return (-1);
  379         }
  380 
  381         return (0);
  382 }
  383 
  384 /*
  385  * Read a word of data stored in the EEPROM at address 'addr.'
  386  */
  387 int
  388 aue_eeprom_getword(struct aue_softc *sc, int addr)
  389 {
  390         int             i;
  391 
  392         aue_csr_write_1(sc, AUE_EE_REG, addr);
  393         aue_csr_write_1(sc, AUE_EE_CTL, AUE_EECTL_READ);
  394 
  395         for (i = 0; i < AUE_TIMEOUT; i++) {
  396                 if (aue_csr_read_1(sc, AUE_EE_CTL) & AUE_EECTL_DONE)
  397                         break;
  398         }
  399 
  400         if (i == AUE_TIMEOUT) {
  401                 printf("%s: EEPROM read timed out\n",
  402                     sc->aue_dev.dv_xname);
  403         }
  404 
  405         return (aue_csr_read_2(sc, AUE_EE_DATA));
  406 }
  407 
  408 /*
  409  * Read the MAC from the EEPROM.  It's at offset 0.
  410  */
  411 void
  412 aue_read_mac(struct aue_softc *sc, u_char *dest)
  413 {
  414         int                     i;
  415         int                     off = 0;
  416         int                     word;
  417 
  418         DPRINTFN(5,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
  419 
  420         for (i = 0; i < 3; i++) {
  421                 word = aue_eeprom_getword(sc, off + i);
  422                 dest[2 * i] = (u_char)word;
  423                 dest[2 * i + 1] = (u_char)(word >> 8);
  424         }
  425 }
  426 
  427 /* Get exclusive access to the MII registers */
  428 void
  429 aue_lock_mii(struct aue_softc *sc)
  430 {
  431         sc->aue_refcnt++;
  432         rw_enter_write(&sc->aue_mii_lock);
  433 }
  434 
  435 void
  436 aue_unlock_mii(struct aue_softc *sc)
  437 {
  438         rw_exit_write(&sc->aue_mii_lock);
  439         if (--sc->aue_refcnt < 0)
  440                 usb_detach_wakeup(&sc->aue_dev);
  441 }
  442 
  443 int
  444 aue_miibus_readreg(struct device *dev, int phy, int reg)
  445 {
  446         struct aue_softc        *sc = (void *)dev;
  447         int                     i;
  448         u_int16_t               val;
  449 
  450         if (sc->aue_dying) {
  451 #ifdef DIAGNOSTIC
  452                 printf("%s: dying\n", sc->aue_dev.dv_xname);
  453 #endif
  454                 return 0;
  455         }
  456 
  457 #if 0
  458         /*
  459          * The Am79C901 HomePNA PHY actually contains
  460          * two transceivers: a 1Mbps HomePNA PHY and a
  461          * 10Mbps full/half duplex ethernet PHY with
  462          * NWAY autoneg. However in the ADMtek adapter,
  463          * only the 1Mbps PHY is actually connected to
  464          * anything, so we ignore the 10Mbps one. It
  465          * happens to be configured for MII address 3,
  466          * so we filter that out.
  467          */
  468         if (sc->aue_vendor == USB_VENDOR_ADMTEK &&
  469             sc->aue_product == USB_PRODUCT_ADMTEK_PEGASUS) {
  470                 if (phy == 3)
  471                         return (0);
  472         }
  473 #endif
  474 
  475         aue_lock_mii(sc);
  476         aue_csr_write_1(sc, AUE_PHY_ADDR, phy);
  477         aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_READ);
  478 
  479         for (i = 0; i < AUE_TIMEOUT; i++) {
  480                 if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
  481                         break;
  482         }
  483 
  484         if (i == AUE_TIMEOUT) {
  485                 printf("%s: MII read timed out\n", sc->aue_dev.dv_xname);
  486         }
  487 
  488         val = aue_csr_read_2(sc, AUE_PHY_DATA);
  489 
  490         DPRINTFN(11,("%s: %s: phy=%d reg=%d => 0x%04x\n",
  491                      sc->aue_dev.dv_xname, __func__, phy, reg, val));
  492 
  493         aue_unlock_mii(sc);
  494         return (val);
  495 }
  496 
  497 void
  498 aue_miibus_writereg(struct device *dev, int phy, int reg, int data)
  499 {
  500         struct aue_softc        *sc = (void *)dev;
  501         int                     i;
  502 
  503 #if 0
  504         if (sc->aue_vendor == USB_VENDOR_ADMTEK &&
  505             sc->aue_product == USB_PRODUCT_ADMTEK_PEGASUS) {
  506                 if (phy == 3)
  507                         return;
  508         }
  509 #endif
  510 
  511         DPRINTFN(11,("%s: %s: phy=%d reg=%d data=0x%04x\n",
  512                      sc->aue_dev.dv_xname, __func__, phy, reg, data));
  513 
  514         aue_lock_mii(sc);
  515         aue_csr_write_2(sc, AUE_PHY_DATA, data);
  516         aue_csr_write_1(sc, AUE_PHY_ADDR, phy);
  517         aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_WRITE);
  518 
  519         for (i = 0; i < AUE_TIMEOUT; i++) {
  520                 if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
  521                         break;
  522         }
  523 
  524         if (i == AUE_TIMEOUT) {
  525                 printf("%s: MII read timed out\n",
  526                     sc->aue_dev.dv_xname);
  527         }
  528         aue_unlock_mii(sc);
  529 }
  530 
  531 void
  532 aue_miibus_statchg(struct device *dev)
  533 {
  534         struct aue_softc        *sc = (void *)dev;
  535         struct mii_data         *mii = GET_MII(sc);
  536 
  537         DPRINTFN(5,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
  538 
  539         aue_lock_mii(sc);
  540         AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB);
  541 
  542         if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) {
  543                 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
  544         } else {
  545                 AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
  546         }
  547 
  548         if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
  549                 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
  550         else
  551                 AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
  552 
  553         AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB);
  554         aue_unlock_mii(sc);
  555 
  556         /*
  557          * Set the LED modes on the LinkSys adapter.
  558          * This turns on the 'dual link LED' bin in the auxmode
  559          * register of the Broadcom PHY.
  560          */
  561         if (!sc->aue_dying && (sc->aue_flags & LSYS)) {
  562                 u_int16_t auxmode;
  563                 auxmode = aue_miibus_readreg(dev, 0, 0x1b);
  564                 aue_miibus_writereg(dev, 0, 0x1b, auxmode | 0x04);
  565         }
  566         DPRINTFN(5,("%s: %s: exit\n", sc->aue_dev.dv_xname, __func__));
  567 }
  568 
  569 #define AUE_POLY        0xEDB88320
  570 #define AUE_BITS        6
  571 
  572 u_int32_t
  573 aue_crc(caddr_t addr)
  574 {
  575         u_int32_t               idx, bit, data, crc;
  576 
  577         /* Compute CRC for the address value. */
  578         crc = 0xFFFFFFFF; /* initial value */
  579 
  580         for (idx = 0; idx < 6; idx++) {
  581                 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1)
  582                         crc = (crc >> 1) ^ (((crc ^ data) & 1) ? AUE_POLY : 0);
  583         }
  584 
  585         return (crc & ((1 << AUE_BITS) - 1));
  586 }
  587 
  588 void
  589 aue_setmulti(struct aue_softc *sc)
  590 {
  591         struct ifnet            *ifp;
  592         struct ether_multi      *enm;
  593         struct ether_multistep  step;
  594         u_int32_t               h = 0, i;
  595 
  596         DPRINTFN(5,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
  597 
  598         ifp = GET_IFP(sc);
  599 
  600         if (ifp->if_flags & IFF_PROMISC) {
  601 allmulti:
  602                 ifp->if_flags |= IFF_ALLMULTI;
  603                 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
  604                 return;
  605         }
  606 
  607         AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
  608 
  609         /* first, zot all the existing hash bits */
  610         for (i = 0; i < 8; i++)
  611                 aue_csr_write_1(sc, AUE_MAR0 + i, 0);
  612 
  613         /* now program new ones */
  614         ETHER_FIRST_MULTI(step, &sc->arpcom, enm);
  615         while (enm != NULL) {
  616                 if (memcmp(enm->enm_addrlo,
  617                     enm->enm_addrhi, ETHER_ADDR_LEN) != 0)
  618                         goto allmulti;
  619 
  620                 h = aue_crc(enm->enm_addrlo);
  621                 AUE_SETBIT(sc, AUE_MAR + (h >> 3), 1 << (h & 0x7));
  622                 ETHER_NEXT_MULTI(step, enm);
  623         }
  624 
  625         ifp->if_flags &= ~IFF_ALLMULTI;
  626 }
  627 
  628 void
  629 aue_reset_pegasus_II(struct aue_softc *sc)
  630 {
  631         /* Magic constants taken from Linux driver. */
  632         aue_csr_write_1(sc, AUE_REG_1D, 0);
  633         aue_csr_write_1(sc, AUE_REG_7B, 2);
  634 #if 0
  635         if ((sc->aue_flags & HAS_HOME_PNA) && mii_mode)
  636                 aue_csr_write_1(sc, AUE_REG_81, 6);
  637         else
  638 #endif
  639                 aue_csr_write_1(sc, AUE_REG_81, 2);
  640 }
  641 
  642 void
  643 aue_reset(struct aue_softc *sc)
  644 {
  645         int             i;
  646 
  647         DPRINTFN(2,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
  648 
  649         AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_RESETMAC);
  650 
  651         for (i = 0; i < AUE_TIMEOUT; i++) {
  652                 if (!(aue_csr_read_1(sc, AUE_CTL1) & AUE_CTL1_RESETMAC))
  653                         break;
  654         }
  655 
  656         if (i == AUE_TIMEOUT)
  657                 printf("%s: reset failed\n", sc->aue_dev.dv_xname);
  658 
  659 #if 0
  660         /* XXX what is mii_mode supposed to be */
  661         if (sc->aue_mii_mode && (sc->aue_flags & PNA))
  662                 aue_csr_write_1(sc, AUE_GPIO1, 0x34);
  663         else
  664                 aue_csr_write_1(sc, AUE_GPIO1, 0x26);
  665 #endif
  666 
  667         /*
  668          * The PHY(s) attached to the Pegasus chip may be held
  669          * in reset until we flip on the GPIO outputs. Make sure
  670          * to set the GPIO pins high so that the PHY(s) will
  671          * be enabled.
  672          *
  673          * Note: We force all of the GPIO pins low first, *then*
  674          * enable the ones we want.
  675          */
  676         if (sc->aue_flags & LSYS) {
  677                 /* Grrr. LinkSys has to be different from everyone else. */
  678                 aue_csr_write_1(sc, AUE_GPIO0,
  679                     AUE_GPIO_SEL0 | AUE_GPIO_SEL1);
  680         } else {
  681                 aue_csr_write_1(sc, AUE_GPIO0,
  682                     AUE_GPIO_OUT0 | AUE_GPIO_SEL0);
  683         }
  684         aue_csr_write_1(sc, AUE_GPIO0,
  685             AUE_GPIO_OUT0 | AUE_GPIO_SEL0 | AUE_GPIO_SEL1);
  686 
  687         if (sc->aue_flags & PII)
  688                 aue_reset_pegasus_II(sc);
  689 
  690         /* Wait a little while for the chip to get its brains in order. */
  691         delay(10000);           /* XXX */
  692 }
  693 
  694 /*
  695  * Probe for a Pegasus chip.
  696  */
  697 int
  698 aue_match(struct device *parent, void *match, void *aux)
  699 {
  700         struct usb_attach_arg   *uaa = aux;
  701 
  702         if (uaa->iface != NULL)
  703                 return (UMATCH_NONE);
  704 
  705         return (aue_lookup(uaa->vendor, uaa->product) != NULL ?
  706                 UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
  707 }
  708 
  709 /*
  710  * Attach the interface. Allocate softc structures, do ifmedia
  711  * setup and ethernet/BPF attach.
  712  */
  713 void
  714 aue_attach(struct device *parent, struct device *self, void *aux)
  715 {
  716         struct aue_softc        *sc = (struct aue_softc *)self;
  717         struct usb_attach_arg   *uaa = aux;
  718         char                    *devinfop;
  719         int                     s;
  720         u_char                  eaddr[ETHER_ADDR_LEN];
  721         struct ifnet            *ifp;
  722         struct mii_data         *mii;
  723         usbd_device_handle      dev = uaa->device;
  724         usbd_interface_handle   iface;
  725         usbd_status             err;
  726         usb_interface_descriptor_t      *id;
  727         usb_endpoint_descriptor_t       *ed;
  728         int                     i;
  729 
  730         DPRINTFN(5,(" : aue_attach: sc=%p", sc));
  731 
  732         devinfop = usbd_devinfo_alloc(uaa->device, 0);
  733         printf("\n%s: %s\n", sc->aue_dev.dv_xname, devinfop);
  734         usbd_devinfo_free(devinfop);
  735 
  736         err = usbd_set_config_no(dev, AUE_CONFIG_NO, 1);
  737         if (err) {
  738                 printf("%s: setting config no failed\n",
  739                     sc->aue_dev.dv_xname);
  740                 return;
  741         }
  742 
  743         usb_init_task(&sc->aue_tick_task, aue_tick_task, sc);
  744         usb_init_task(&sc->aue_stop_task, (void (*)(void *))aue_stop, sc);
  745         rw_init(&sc->aue_mii_lock, "auemii");
  746 
  747         err = usbd_device2interface_handle(dev, AUE_IFACE_IDX, &iface);
  748         if (err) {
  749                 printf("%s: getting interface handle failed\n",
  750                     sc->aue_dev.dv_xname);
  751                 return;
  752         }
  753 
  754         sc->aue_flags = aue_lookup(uaa->vendor, uaa->product)->aue_flags;
  755 
  756         sc->aue_udev = dev;
  757         sc->aue_iface = iface;
  758         sc->aue_product = uaa->product;
  759         sc->aue_vendor = uaa->vendor;
  760 
  761         id = usbd_get_interface_descriptor(iface);
  762 
  763         /* Find endpoints. */
  764         for (i = 0; i < id->bNumEndpoints; i++) {
  765                 ed = usbd_interface2endpoint_descriptor(iface, i);
  766                 if (ed == NULL) {
  767                         printf("%s: couldn't get endpoint descriptor %d\n",
  768                             sc->aue_dev.dv_xname, i);
  769                         return;
  770                 }
  771                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
  772                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
  773                         sc->aue_ed[AUE_ENDPT_RX] = ed->bEndpointAddress;
  774                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
  775                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
  776                         sc->aue_ed[AUE_ENDPT_TX] = ed->bEndpointAddress;
  777                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
  778                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
  779                         sc->aue_ed[AUE_ENDPT_INTR] = ed->bEndpointAddress;
  780                 }
  781         }
  782 
  783         if (sc->aue_ed[AUE_ENDPT_RX] == 0 || sc->aue_ed[AUE_ENDPT_TX] == 0 ||
  784             sc->aue_ed[AUE_ENDPT_INTR] == 0) {
  785                 printf("%s: missing endpoint\n", sc->aue_dev.dv_xname);
  786                 return;
  787         }
  788 
  789 
  790         s = splnet();
  791 
  792         /* Reset the adapter. */
  793         aue_reset(sc);
  794 
  795         /*
  796          * Get station address from the EEPROM.
  797          */
  798         aue_read_mac(sc, eaddr);
  799 
  800         /*
  801          * A Pegasus chip was detected. Inform the world.
  802          */
  803         ifp = GET_IFP(sc);
  804         printf("%s: address %s\n", sc->aue_dev.dv_xname,
  805             ether_sprintf(eaddr));
  806 
  807         bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
  808 
  809         /* Initialize interface info.*/
  810         ifp->if_softc = sc;
  811         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
  812         ifp->if_ioctl = aue_ioctl;
  813         ifp->if_start = aue_start;
  814         ifp->if_watchdog = aue_watchdog;
  815         strlcpy(ifp->if_xname, sc->aue_dev.dv_xname, IFNAMSIZ);
  816 
  817         IFQ_SET_READY(&ifp->if_snd);
  818 
  819         /* Initialize MII/media info. */
  820         mii = &sc->aue_mii;
  821         mii->mii_ifp = ifp;
  822         mii->mii_readreg = aue_miibus_readreg;
  823         mii->mii_writereg = aue_miibus_writereg;
  824         mii->mii_statchg = aue_miibus_statchg;
  825         mii->mii_flags = MIIF_AUTOTSLEEP;
  826         ifmedia_init(&mii->mii_media, 0, aue_ifmedia_upd, aue_ifmedia_sts);
  827         mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0);
  828         if (LIST_FIRST(&mii->mii_phys) == NULL) {
  829                 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL);
  830                 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE);
  831         } else
  832                 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO);
  833 
  834         /* Attach the interface. */
  835         if_attach(ifp);
  836         ether_ifattach(ifp);
  837 
  838         timeout_set(&sc->aue_stat_ch, NULL, NULL);
  839 
  840         sc->aue_attached = 1;
  841         sc->sc_sdhook = shutdownhook_establish(aue_shutdown, sc);
  842         splx(s);
  843 
  844         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->aue_udev,
  845                            &sc->aue_dev);
  846 }
  847 
  848 int
  849 aue_detach(struct device *self, int flags)
  850 {
  851         struct aue_softc        *sc = (struct aue_softc *)self;
  852         struct ifnet            *ifp = GET_IFP(sc);
  853         int                     s;
  854 
  855         DPRINTFN(2,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
  856 
  857         if (!sc->aue_attached) {
  858                 /* Detached before attached finished, so just bail out. */
  859                 return (0);
  860         }
  861 
  862         timeout_del(&sc->aue_stat_ch);
  863         /*
  864          * Remove any pending tasks.  They cannot be executing because they run
  865          * in the same thread as detach.
  866          */
  867         usb_rem_task(sc->aue_udev, &sc->aue_tick_task);
  868         usb_rem_task(sc->aue_udev, &sc->aue_stop_task);
  869 
  870         s = splusb();
  871 
  872         if (ifp->if_flags & IFF_RUNNING)
  873                 aue_stop(sc);
  874 
  875         mii_detach(&sc->aue_mii, MII_PHY_ANY, MII_OFFSET_ANY);
  876         ifmedia_delete_instance(&sc->aue_mii.mii_media, IFM_INST_ANY);
  877         ether_ifdetach(ifp);
  878         if_detach(ifp);
  879 
  880 #ifdef DIAGNOSTIC
  881         if (sc->aue_ep[AUE_ENDPT_TX] != NULL ||
  882             sc->aue_ep[AUE_ENDPT_RX] != NULL ||
  883             sc->aue_ep[AUE_ENDPT_INTR] != NULL)
  884                 printf("%s: detach has active endpoints\n",
  885                        sc->aue_dev.dv_xname);
  886 #endif
  887 
  888         sc->aue_attached = 0;
  889         if (sc->sc_sdhook != NULL)
  890                 shutdownhook_disestablish(sc->sc_sdhook);
  891 
  892         if (--sc->aue_refcnt >= 0) {
  893                 /* Wait for processes to go away. */
  894                 usb_detach_wait(&sc->aue_dev);
  895         }
  896         splx(s);
  897 
  898         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->aue_udev,
  899                            &sc->aue_dev);
  900 
  901         return (0);
  902 }
  903 
  904 int
  905 aue_activate(struct device *self, enum devact act)
  906 {
  907         struct aue_softc *sc = (struct aue_softc *)self;
  908 
  909         DPRINTFN(2,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
  910 
  911         switch (act) {
  912         case DVACT_ACTIVATE:
  913                 break;
  914 
  915         case DVACT_DEACTIVATE:
  916                 sc->aue_dying = 1;
  917                 break;
  918         }
  919         return (0);
  920 }
  921 
  922 /*
  923  * Initialize an RX descriptor and attach an MBUF cluster.
  924  */
  925 int
  926 aue_newbuf(struct aue_softc *sc, struct aue_chain *c, struct mbuf *m)
  927 {
  928         struct mbuf             *m_new = NULL;
  929 
  930         DPRINTFN(10,("%s: %s: enter\n", sc->aue_dev.dv_xname,__func__));
  931 
  932         if (m == NULL) {
  933                 MGETHDR(m_new, M_DONTWAIT, MT_DATA);
  934                 if (m_new == NULL) {
  935                         printf("%s: no memory for rx list "
  936                             "-- packet dropped!\n", sc->aue_dev.dv_xname);
  937                         return (ENOBUFS);
  938                 }
  939 
  940                 MCLGET(m_new, M_DONTWAIT);
  941                 if (!(m_new->m_flags & M_EXT)) {
  942                         printf("%s: no memory for rx list "
  943                             "-- packet dropped!\n", sc->aue_dev.dv_xname);
  944                         m_freem(m_new);
  945                         return (ENOBUFS);
  946                 }
  947                 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
  948         } else {
  949                 m_new = m;
  950                 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
  951                 m_new->m_data = m_new->m_ext.ext_buf;
  952         }
  953 
  954         m_adj(m_new, ETHER_ALIGN);
  955         c->aue_mbuf = m_new;
  956 
  957         return (0);
  958 }
  959 
  960 int
  961 aue_rx_list_init(struct aue_softc *sc)
  962 {
  963         struct aue_cdata        *cd;
  964         struct aue_chain        *c;
  965         int                     i;
  966 
  967         DPRINTFN(5,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
  968 
  969         cd = &sc->aue_cdata;
  970         for (i = 0; i < AUE_RX_LIST_CNT; i++) {
  971                 c = &cd->aue_rx_chain[i];
  972                 c->aue_sc = sc;
  973                 c->aue_idx = i;
  974                 if (aue_newbuf(sc, c, NULL) == ENOBUFS)
  975                         return (ENOBUFS);
  976                 if (c->aue_xfer == NULL) {
  977                         c->aue_xfer = usbd_alloc_xfer(sc->aue_udev);
  978                         if (c->aue_xfer == NULL)
  979                                 return (ENOBUFS);
  980                         c->aue_buf = usbd_alloc_buffer(c->aue_xfer, AUE_BUFSZ);
  981                         if (c->aue_buf == NULL)
  982                                 return (ENOBUFS); /* XXX free xfer */
  983                 }
  984         }
  985 
  986         return (0);
  987 }
  988 
  989 int
  990 aue_tx_list_init(struct aue_softc *sc)
  991 {
  992         struct aue_cdata        *cd;
  993         struct aue_chain        *c;
  994         int                     i;
  995 
  996         DPRINTFN(5,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
  997 
  998         cd = &sc->aue_cdata;
  999         for (i = 0; i < AUE_TX_LIST_CNT; i++) {
 1000                 c = &cd->aue_tx_chain[i];
 1001                 c->aue_sc = sc;
 1002                 c->aue_idx = i;
 1003                 c->aue_mbuf = NULL;
 1004                 if (c->aue_xfer == NULL) {
 1005                         c->aue_xfer = usbd_alloc_xfer(sc->aue_udev);
 1006                         if (c->aue_xfer == NULL)
 1007                                 return (ENOBUFS);
 1008                         c->aue_buf = usbd_alloc_buffer(c->aue_xfer, AUE_BUFSZ);
 1009                         if (c->aue_buf == NULL)
 1010                                 return (ENOBUFS);
 1011                 }
 1012         }
 1013 
 1014         return (0);
 1015 }
 1016 
 1017 void
 1018 aue_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 1019 {
 1020         struct aue_softc        *sc = priv;
 1021         struct ifnet            *ifp = GET_IFP(sc);
 1022         struct aue_intrpkt      *p = &sc->aue_cdata.aue_ibuf;
 1023 
 1024         DPRINTFN(15,("%s: %s: enter\n", sc->aue_dev.dv_xname,__func__));
 1025 
 1026         if (sc->aue_dying)
 1027                 return;
 1028 
 1029         if (!(ifp->if_flags & IFF_RUNNING))
 1030                 return;
 1031 
 1032         if (status != USBD_NORMAL_COMPLETION) {
 1033                 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
 1034                         return;
 1035                 }
 1036                 sc->aue_intr_errs++;
 1037                 if (usbd_ratecheck(&sc->aue_rx_notice)) {
 1038                         printf("%s: %u usb errors on intr: %s\n",
 1039                             sc->aue_dev.dv_xname, sc->aue_intr_errs,
 1040                             usbd_errstr(status));
 1041                         sc->aue_intr_errs = 0;
 1042                 }
 1043                 if (status == USBD_STALLED)
 1044                         usbd_clear_endpoint_stall_async(sc->aue_ep[AUE_ENDPT_RX]);
 1045                 return;
 1046         }
 1047 
 1048         if (p->aue_txstat0)
 1049                 ifp->if_oerrors++;
 1050 
 1051         if (p->aue_txstat0 & (AUE_TXSTAT0_LATECOLL | AUE_TXSTAT0_EXCESSCOLL))
 1052                 ifp->if_collisions++;
 1053 }
 1054 
 1055 /*
 1056  * A frame has been uploaded: pass the resulting mbuf chain up to
 1057  * the higher level protocols.
 1058  */
 1059 void
 1060 aue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 1061 {
 1062         struct aue_chain        *c = priv;
 1063         struct aue_softc        *sc = c->aue_sc;
 1064         struct ifnet            *ifp = GET_IFP(sc);
 1065         struct mbuf             *m;
 1066         u_int32_t               total_len;
 1067         struct aue_rxpkt        r;
 1068         int                     s;
 1069 
 1070         DPRINTFN(10,("%s: %s: enter\n", sc->aue_dev.dv_xname,__func__));
 1071 
 1072         if (sc->aue_dying)
 1073                 return;
 1074 
 1075         if (!(ifp->if_flags & IFF_RUNNING))
 1076                 return;
 1077 
 1078         if (status != USBD_NORMAL_COMPLETION) {
 1079                 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
 1080                         return;
 1081                 sc->aue_rx_errs++;
 1082                 if (usbd_ratecheck(&sc->aue_rx_notice)) {
 1083                         printf("%s: %u usb errors on rx: %s\n",
 1084                             sc->aue_dev.dv_xname, sc->aue_rx_errs,
 1085                             usbd_errstr(status));
 1086                         sc->aue_rx_errs = 0;
 1087                 }
 1088                 if (status == USBD_STALLED)
 1089                         usbd_clear_endpoint_stall_async(sc->aue_ep[AUE_ENDPT_RX]);
 1090                 goto done;
 1091         }
 1092 
 1093         usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
 1094 
 1095         memcpy(mtod(c->aue_mbuf, char *), c->aue_buf, total_len);
 1096 
 1097         if (total_len <= 4 + ETHER_CRC_LEN) {
 1098                 ifp->if_ierrors++;
 1099                 goto done;
 1100         }
 1101 
 1102         memcpy(&r, c->aue_buf + total_len - 4, sizeof(r));
 1103 
 1104         /* Turn off all the non-error bits in the rx status word. */
 1105         r.aue_rxstat &= AUE_RXSTAT_MASK;
 1106         if (r.aue_rxstat) {
 1107                 ifp->if_ierrors++;
 1108                 goto done;
 1109         }
 1110 
 1111         /* No errors; receive the packet. */
 1112         m = c->aue_mbuf;
 1113         total_len -= ETHER_CRC_LEN + 4;
 1114         m->m_pkthdr.len = m->m_len = total_len;
 1115         ifp->if_ipackets++;
 1116 
 1117         m->m_pkthdr.rcvif = ifp;
 1118 
 1119         s = splnet();
 1120 
 1121         /* XXX ugly */
 1122         if (aue_newbuf(sc, c, NULL) == ENOBUFS) {
 1123                 ifp->if_ierrors++;
 1124                 goto done1;
 1125         }
 1126 
 1127 #if NBPFILTER > 0
 1128         /*
 1129          * Handle BPF listeners. Let the BPF user see the packet, but
 1130          * don't pass it up to the ether_input() layer unless it's
 1131          * a broadcast packet, multicast packet, matches our ethernet
 1132          * address or the interface is in promiscuous mode.
 1133          */
 1134         if (ifp->if_bpf)
 1135                 bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_IN);
 1136 #endif
 1137 
 1138         DPRINTFN(10,("%s: %s: deliver %d\n", sc->aue_dev.dv_xname,
 1139                     __func__, m->m_len));
 1140         ether_input_mbuf(ifp, m);
 1141  done1:
 1142         splx(s);
 1143 
 1144  done:
 1145 
 1146         /* Setup new transfer. */
 1147         usbd_setup_xfer(xfer, sc->aue_ep[AUE_ENDPT_RX],
 1148             c, c->aue_buf, AUE_BUFSZ,
 1149             USBD_SHORT_XFER_OK | USBD_NO_COPY,
 1150             USBD_NO_TIMEOUT, aue_rxeof);
 1151         usbd_transfer(xfer);
 1152 
 1153         DPRINTFN(10,("%s: %s: start rx\n", sc->aue_dev.dv_xname,
 1154                     __func__));
 1155 }
 1156 
 1157 /*
 1158  * A frame was downloaded to the chip. It's safe for us to clean up
 1159  * the list buffers.
 1160  */
 1161 
 1162 void
 1163 aue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 1164 {
 1165         struct aue_chain        *c = priv;
 1166         struct aue_softc        *sc = c->aue_sc;
 1167         struct ifnet            *ifp = GET_IFP(sc);
 1168         int                     s;
 1169 
 1170         if (sc->aue_dying)
 1171                 return;
 1172 
 1173         s = splnet();
 1174 
 1175         DPRINTFN(10,("%s: %s: enter status=%d\n", sc->aue_dev.dv_xname,
 1176                     __func__, status));
 1177 
 1178         ifp->if_timer = 0;
 1179         ifp->if_flags &= ~IFF_OACTIVE;
 1180 
 1181         if (status != USBD_NORMAL_COMPLETION) {
 1182                 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
 1183                         splx(s);
 1184                         return;
 1185                 }
 1186                 ifp->if_oerrors++;
 1187                 printf("%s: usb error on tx: %s\n", sc->aue_dev.dv_xname,
 1188                     usbd_errstr(status));
 1189                 if (status == USBD_STALLED)
 1190                         usbd_clear_endpoint_stall_async(sc->aue_ep[AUE_ENDPT_TX]);
 1191                 splx(s);
 1192                 return;
 1193         }
 1194 
 1195         ifp->if_opackets++;
 1196 
 1197         m_freem(c->aue_mbuf);
 1198         c->aue_mbuf = NULL;
 1199 
 1200         if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
 1201                 aue_start(ifp);
 1202 
 1203         splx(s);
 1204 }
 1205 
 1206 void
 1207 aue_tick(void *xsc)
 1208 {
 1209         struct aue_softc        *sc = xsc;
 1210 
 1211         DPRINTFN(15,("%s: %s: enter\n", sc->aue_dev.dv_xname,__func__));
 1212 
 1213         if (sc == NULL)
 1214                 return;
 1215 
 1216         if (sc->aue_dying)
 1217                 return;
 1218 
 1219         /* Perform periodic stuff in process context. */
 1220         usb_add_task(sc->aue_udev, &sc->aue_tick_task);
 1221 }
 1222 
 1223 void
 1224 aue_tick_task(void *xsc)
 1225 {
 1226         struct aue_softc        *sc = xsc;
 1227         struct ifnet            *ifp;
 1228         struct mii_data         *mii;
 1229         int                     s;
 1230 
 1231         DPRINTFN(15,("%s: %s: enter\n", sc->aue_dev.dv_xname,__func__));
 1232 
 1233         if (sc->aue_dying)
 1234                 return;
 1235 
 1236         ifp = GET_IFP(sc);
 1237         mii = GET_MII(sc);
 1238         if (mii == NULL)
 1239                 return;
 1240 
 1241         s = splnet();
 1242 
 1243         mii_tick(mii);
 1244         if (!sc->aue_link && mii->mii_media_status & IFM_ACTIVE &&
 1245             IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
 1246                 DPRINTFN(2,("%s: %s: got link\n",
 1247                             sc->aue_dev.dv_xname,__func__));
 1248                 sc->aue_link++;
 1249                 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
 1250                         aue_start(ifp);
 1251         }
 1252 
 1253         timeout_del(&sc->aue_stat_ch);
 1254         timeout_set(&sc->aue_stat_ch, aue_tick, sc);
 1255         timeout_add(&sc->aue_stat_ch, hz);
 1256 
 1257         splx(s);
 1258 }
 1259 
 1260 int
 1261 aue_send(struct aue_softc *sc, struct mbuf *m, int idx)
 1262 {
 1263         int                     total_len;
 1264         struct aue_chain        *c;
 1265         usbd_status             err;
 1266 
 1267         DPRINTFN(10,("%s: %s: enter\n", sc->aue_dev.dv_xname,__func__));
 1268 
 1269         c = &sc->aue_cdata.aue_tx_chain[idx];
 1270 
 1271         /*
 1272          * Copy the mbuf data into a contiguous buffer, leaving two
 1273          * bytes at the beginning to hold the frame length.
 1274          */
 1275         m_copydata(m, 0, m->m_pkthdr.len, c->aue_buf + 2);
 1276         c->aue_mbuf = m;
 1277 
 1278         /*
 1279          * The ADMtek documentation says that the packet length is
 1280          * supposed to be specified in the first two bytes of the
 1281          * transfer, however it actually seems to ignore this info
 1282          * and base the frame size on the bulk transfer length.
 1283          */
 1284         c->aue_buf[0] = (u_int8_t)m->m_pkthdr.len;
 1285         c->aue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8);
 1286         total_len = m->m_pkthdr.len + 2;
 1287 
 1288         usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_TX],
 1289             c, c->aue_buf, total_len, USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
 1290             AUE_TX_TIMEOUT, aue_txeof);
 1291 
 1292         /* Transmit */
 1293         err = usbd_transfer(c->aue_xfer);
 1294         if (err != USBD_IN_PROGRESS) {
 1295                 printf("%s: aue_send error=%s\n", sc->aue_dev.dv_xname,
 1296                        usbd_errstr(err));
 1297                 /* Stop the interface from process context. */
 1298                 usb_add_task(sc->aue_udev, &sc->aue_stop_task);
 1299                 return (EIO);
 1300         }
 1301         DPRINTFN(5,("%s: %s: send %d bytes\n", sc->aue_dev.dv_xname,
 1302                     __func__, total_len));
 1303 
 1304         sc->aue_cdata.aue_tx_cnt++;
 1305 
 1306         return (0);
 1307 }
 1308 
 1309 void
 1310 aue_start(struct ifnet *ifp)
 1311 {
 1312         struct aue_softc        *sc = ifp->if_softc;
 1313         struct mbuf             *m_head = NULL;
 1314 
 1315         DPRINTFN(5,("%s: %s: enter, link=%d\n", sc->aue_dev.dv_xname,
 1316                     __func__, sc->aue_link));
 1317 
 1318         if (sc->aue_dying)
 1319                 return;
 1320 
 1321         if (!sc->aue_link)
 1322                 return;
 1323 
 1324         if (ifp->if_flags & IFF_OACTIVE)
 1325                 return;
 1326 
 1327         IFQ_POLL(&ifp->if_snd, m_head);
 1328         if (m_head == NULL)
 1329                 return;
 1330 
 1331         if (aue_send(sc, m_head, 0)) {
 1332                 ifp->if_flags |= IFF_OACTIVE;
 1333                 return;
 1334         }
 1335 
 1336         IFQ_DEQUEUE(&ifp->if_snd, m_head);
 1337 
 1338 #if NBPFILTER > 0
 1339         /*
 1340          * If there's a BPF listener, bounce a copy of this frame
 1341          * to him.
 1342          */
 1343         if (ifp->if_bpf)
 1344                 bpf_mtap(ifp->if_bpf, m_head, BPF_DIRECTION_OUT);
 1345 #endif
 1346 
 1347         ifp->if_flags |= IFF_OACTIVE;
 1348 
 1349         /*
 1350          * Set a timeout in case the chip goes out to lunch.
 1351          */
 1352         ifp->if_timer = 5;
 1353 }
 1354 
 1355 void
 1356 aue_init(void *xsc)
 1357 {
 1358         struct aue_softc        *sc = xsc;
 1359         struct ifnet            *ifp = GET_IFP(sc);
 1360         struct mii_data         *mii = GET_MII(sc);
 1361         int                     i, s;
 1362         u_char                  *eaddr;
 1363 
 1364         DPRINTFN(5,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
 1365 
 1366         if (sc->aue_dying)
 1367                 return;
 1368 
 1369         if (ifp->if_flags & IFF_RUNNING)
 1370                 return;
 1371 
 1372         s = splnet();
 1373 
 1374         /*
 1375          * Cancel pending I/O and free all RX/TX buffers.
 1376          */
 1377         aue_reset(sc);
 1378 
 1379         eaddr = sc->arpcom.ac_enaddr;
 1380         for (i = 0; i < ETHER_ADDR_LEN; i++)
 1381                 aue_csr_write_1(sc, AUE_PAR0 + i, eaddr[i]);
 1382 
 1383          /* If we want promiscuous mode, set the allframes bit. */
 1384         if (ifp->if_flags & IFF_PROMISC)
 1385                 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
 1386         else
 1387                 AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
 1388 
 1389         /* Init TX ring. */
 1390         if (aue_tx_list_init(sc) == ENOBUFS) {
 1391                 printf("%s: tx list init failed\n", sc->aue_dev.dv_xname);
 1392                 splx(s);
 1393                 return;
 1394         }
 1395 
 1396         /* Init RX ring. */
 1397         if (aue_rx_list_init(sc) == ENOBUFS) {
 1398                 printf("%s: rx list init failed\n", sc->aue_dev.dv_xname);
 1399                 splx(s);
 1400                 return;
 1401         }
 1402 
 1403         /* Load the multicast filter. */
 1404         aue_setmulti(sc);
 1405 
 1406         /* Enable RX and TX */
 1407         aue_csr_write_1(sc, AUE_CTL0, AUE_CTL0_RXSTAT_APPEND | AUE_CTL0_RX_ENB);
 1408         AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_TX_ENB);
 1409         AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_EP3_CLR);
 1410 
 1411         mii_mediachg(mii);
 1412 
 1413         if (sc->aue_ep[AUE_ENDPT_RX] == NULL) {
 1414                 if (aue_openpipes(sc)) {
 1415                         splx(s);
 1416                         return;
 1417                 }
 1418         }
 1419 
 1420         ifp->if_flags |= IFF_RUNNING;
 1421         ifp->if_flags &= ~IFF_OACTIVE;
 1422 
 1423         splx(s);
 1424 
 1425         timeout_del(&sc->aue_stat_ch);
 1426         timeout_set(&sc->aue_stat_ch, aue_tick, sc);
 1427         timeout_add(&sc->aue_stat_ch, hz);
 1428 }
 1429 
 1430 int
 1431 aue_openpipes(struct aue_softc *sc)
 1432 {
 1433         struct aue_chain        *c;
 1434         usbd_status             err;
 1435         int i;
 1436 
 1437         /* Open RX and TX pipes. */
 1438         err = usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_RX],
 1439             USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_RX]);
 1440         if (err) {
 1441                 printf("%s: open rx pipe failed: %s\n",
 1442                     sc->aue_dev.dv_xname, usbd_errstr(err));
 1443                 return (EIO);
 1444         }
 1445         err = usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_TX],
 1446             USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_TX]);
 1447         if (err) {
 1448                 printf("%s: open tx pipe failed: %s\n",
 1449                     sc->aue_dev.dv_xname, usbd_errstr(err));
 1450                 return (EIO);
 1451         }
 1452         err = usbd_open_pipe_intr(sc->aue_iface, sc->aue_ed[AUE_ENDPT_INTR],
 1453             USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_INTR], sc,
 1454             &sc->aue_cdata.aue_ibuf, AUE_INTR_PKTLEN, aue_intr,
 1455             AUE_INTR_INTERVAL);
 1456         if (err) {
 1457                 printf("%s: open intr pipe failed: %s\n",
 1458                     sc->aue_dev.dv_xname, usbd_errstr(err));
 1459                 return (EIO);
 1460         }
 1461 
 1462         /* Start up the receive pipe. */
 1463         for (i = 0; i < AUE_RX_LIST_CNT; i++) {
 1464                 c = &sc->aue_cdata.aue_rx_chain[i];
 1465                 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_RX],
 1466                     c, c->aue_buf, AUE_BUFSZ,
 1467                     USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT,
 1468                     aue_rxeof);
 1469                 (void)usbd_transfer(c->aue_xfer); /* XXX */
 1470                 DPRINTFN(5,("%s: %s: start read\n", sc->aue_dev.dv_xname,
 1471                             __func__));
 1472 
 1473         }
 1474         return (0);
 1475 }
 1476 
 1477 /*
 1478  * Set media options.
 1479  */
 1480 int
 1481 aue_ifmedia_upd(struct ifnet *ifp)
 1482 {
 1483         struct aue_softc        *sc = ifp->if_softc;
 1484         struct mii_data         *mii = GET_MII(sc);
 1485 
 1486         DPRINTFN(5,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
 1487 
 1488         if (sc->aue_dying)
 1489                 return (0);
 1490 
 1491         sc->aue_link = 0;
 1492         if (mii->mii_instance) {
 1493                 struct mii_softc        *miisc;
 1494                 for (miisc = LIST_FIRST(&mii->mii_phys); miisc != NULL;
 1495                     miisc = LIST_NEXT(miisc, mii_list))
 1496                          mii_phy_reset(miisc);
 1497         }
 1498         mii_mediachg(mii);
 1499 
 1500         return (0);
 1501 }
 1502 
 1503 /*
 1504  * Report current media status.
 1505  */
 1506 void
 1507 aue_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
 1508 {
 1509         struct aue_softc        *sc = ifp->if_softc;
 1510         struct mii_data         *mii = GET_MII(sc);
 1511 
 1512         DPRINTFN(5,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
 1513 
 1514         mii_pollstat(mii);
 1515         ifmr->ifm_active = mii->mii_media_active;
 1516         ifmr->ifm_status = mii->mii_media_status;
 1517 }
 1518 
 1519 int
 1520 aue_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
 1521 {
 1522         struct aue_softc        *sc = ifp->if_softc;
 1523         struct ifaddr           *ifa = (struct ifaddr *)data;
 1524         struct ifreq            *ifr = (struct ifreq *)data;
 1525         struct mii_data         *mii;
 1526         int                     s, error = 0;
 1527 
 1528         if (sc->aue_dying)
 1529                 return (EIO);
 1530 
 1531         s = splnet();
 1532 
 1533         switch(command) {
 1534         case SIOCSIFADDR:
 1535                 ifp->if_flags |= IFF_UP;
 1536                 aue_init(sc);
 1537 
 1538                 switch (ifa->ifa_addr->sa_family) {
 1539 #ifdef INET
 1540                 case AF_INET:
 1541                         arp_ifinit(&sc->arpcom, ifa);
 1542                         break;
 1543 #endif /* INET */
 1544                 }
 1545                 break;
 1546 
 1547         case SIOCSIFMTU:
 1548                 if (ifr->ifr_mtu > ETHERMTU)
 1549                         error = EINVAL;
 1550                 else
 1551                         ifp->if_mtu = ifr->ifr_mtu;
 1552                 break;
 1553 
 1554         case SIOCSIFFLAGS:
 1555                 if (ifp->if_flags & IFF_UP) {
 1556                         if (ifp->if_flags & IFF_RUNNING &&
 1557                             ifp->if_flags & IFF_PROMISC &&
 1558                             !(sc->aue_if_flags & IFF_PROMISC)) {
 1559                                 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
 1560                         } else if (ifp->if_flags & IFF_RUNNING &&
 1561                             !(ifp->if_flags & IFF_PROMISC) &&
 1562                             sc->aue_if_flags & IFF_PROMISC) {
 1563                                 AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
 1564                         } else if (!(ifp->if_flags & IFF_RUNNING))
 1565                                 aue_init(sc);
 1566                 } else {
 1567                         if (ifp->if_flags & IFF_RUNNING)
 1568                                 aue_stop(sc);
 1569                 }
 1570                 sc->aue_if_flags = ifp->if_flags;
 1571                 error = 0;
 1572                 break;
 1573         case SIOCADDMULTI:
 1574         case SIOCDELMULTI:
 1575                 error = (command == SIOCADDMULTI) ?
 1576                         ether_addmulti(ifr, &sc->arpcom) :
 1577                         ether_delmulti(ifr, &sc->arpcom);
 1578 
 1579                 if (error == ENETRESET) {
 1580                         if (ifp->if_flags & IFF_RUNNING)
 1581                                 aue_setmulti(sc);
 1582                         error = 0;
 1583                 }
 1584                 break;
 1585         case SIOCGIFMEDIA:
 1586         case SIOCSIFMEDIA:
 1587                 mii = GET_MII(sc);
 1588                 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
 1589                 break;
 1590         default:
 1591                 error = EINVAL;
 1592                 break;
 1593         }
 1594 
 1595         splx(s);
 1596 
 1597         return (error);
 1598 }
 1599 
 1600 void
 1601 aue_watchdog(struct ifnet *ifp)
 1602 {
 1603         struct aue_softc        *sc = ifp->if_softc;
 1604         struct aue_chain        *c;
 1605         usbd_status             stat;
 1606         int                     s;
 1607 
 1608         DPRINTFN(5,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
 1609 
 1610         ifp->if_oerrors++;
 1611         printf("%s: watchdog timeout\n", sc->aue_dev.dv_xname);
 1612 
 1613         s = splusb();
 1614         c = &sc->aue_cdata.aue_tx_chain[0];
 1615         usbd_get_xfer_status(c->aue_xfer, NULL, NULL, NULL, &stat);
 1616         aue_txeof(c->aue_xfer, c, stat);
 1617 
 1618         if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
 1619                 aue_start(ifp);
 1620         splx(s);
 1621 }
 1622 
 1623 /*
 1624  * Stop all chip I/O so that the kernel's probe routines don't
 1625  * get confused by errant DMAs when rebooting.
 1626  */
 1627 void
 1628 aue_shutdown(void *arg)
 1629 {
 1630         struct aue_softc *sc = (struct aue_softc *)arg;
 1631 
 1632         aue_reset(sc);
 1633         aue_stop(sc);
 1634 }
 1635 
 1636 /*
 1637  * Stop the adapter and free any mbufs allocated to the
 1638  * RX and TX lists.
 1639  */
 1640 void
 1641 aue_stop(struct aue_softc *sc)
 1642 {
 1643         usbd_status             err;
 1644         struct ifnet            *ifp;
 1645         int                     i;
 1646 
 1647         DPRINTFN(5,("%s: %s: enter\n", sc->aue_dev.dv_xname, __func__));
 1648 
 1649         ifp = GET_IFP(sc);
 1650         ifp->if_timer = 0;
 1651         ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
 1652 
 1653         aue_csr_write_1(sc, AUE_CTL0, 0);
 1654         aue_csr_write_1(sc, AUE_CTL1, 0);
 1655         aue_reset(sc);
 1656         timeout_del(&sc->aue_stat_ch);
 1657 
 1658         /* Stop transfers. */
 1659         if (sc->aue_ep[AUE_ENDPT_RX] != NULL) {
 1660                 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_RX]);
 1661                 if (err) {
 1662                         printf("%s: abort rx pipe failed: %s\n",
 1663                             sc->aue_dev.dv_xname, usbd_errstr(err));
 1664                 }
 1665                 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_RX]);
 1666                 if (err) {
 1667                         printf("%s: close rx pipe failed: %s\n",
 1668                             sc->aue_dev.dv_xname, usbd_errstr(err));
 1669                 }
 1670                 sc->aue_ep[AUE_ENDPT_RX] = NULL;
 1671         }
 1672 
 1673         if (sc->aue_ep[AUE_ENDPT_TX] != NULL) {
 1674                 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_TX]);
 1675                 if (err) {
 1676                         printf("%s: abort tx pipe failed: %s\n",
 1677                             sc->aue_dev.dv_xname, usbd_errstr(err));
 1678                 }
 1679                 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_TX]);
 1680                 if (err) {
 1681                         printf("%s: close tx pipe failed: %s\n",
 1682                             sc->aue_dev.dv_xname, usbd_errstr(err));
 1683                 }
 1684                 sc->aue_ep[AUE_ENDPT_TX] = NULL;
 1685         }
 1686 
 1687         if (sc->aue_ep[AUE_ENDPT_INTR] != NULL) {
 1688                 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_INTR]);
 1689                 if (err) {
 1690                         printf("%s: abort intr pipe failed: %s\n",
 1691                             sc->aue_dev.dv_xname, usbd_errstr(err));
 1692                 }
 1693                 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_INTR]);
 1694                 if (err) {
 1695                         printf("%s: close intr pipe failed: %s\n",
 1696                             sc->aue_dev.dv_xname, usbd_errstr(err));
 1697                 }
 1698                 sc->aue_ep[AUE_ENDPT_INTR] = NULL;
 1699         }
 1700 
 1701         /* Free RX resources. */
 1702         for (i = 0; i < AUE_RX_LIST_CNT; i++) {
 1703                 if (sc->aue_cdata.aue_rx_chain[i].aue_mbuf != NULL) {
 1704                         m_freem(sc->aue_cdata.aue_rx_chain[i].aue_mbuf);
 1705                         sc->aue_cdata.aue_rx_chain[i].aue_mbuf = NULL;
 1706                 }
 1707                 if (sc->aue_cdata.aue_rx_chain[i].aue_xfer != NULL) {
 1708                         usbd_free_xfer(sc->aue_cdata.aue_rx_chain[i].aue_xfer);
 1709                         sc->aue_cdata.aue_rx_chain[i].aue_xfer = NULL;
 1710                 }
 1711         }
 1712 
 1713         /* Free TX resources. */
 1714         for (i = 0; i < AUE_TX_LIST_CNT; i++) {
 1715                 if (sc->aue_cdata.aue_tx_chain[i].aue_mbuf != NULL) {
 1716                         m_freem(sc->aue_cdata.aue_tx_chain[i].aue_mbuf);
 1717                         sc->aue_cdata.aue_tx_chain[i].aue_mbuf = NULL;
 1718                 }
 1719                 if (sc->aue_cdata.aue_tx_chain[i].aue_xfer != NULL) {
 1720                         usbd_free_xfer(sc->aue_cdata.aue_tx_chain[i].aue_xfer);
 1721                         sc->aue_cdata.aue_tx_chain[i].aue_xfer = NULL;
 1722                 }
 1723         }
 1724 
 1725         sc->aue_link = 0;
 1726 }

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